From 90b92a6f51af9adf8c44e8ab3f435b336e5ba6ff Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Thu, 18 Aug 2011 15:25:16 -0500
Subject: [PATCH] KVM: PPC: e500: Eliminate preempt_disable in
local_sid_destroy_all
The only place it makes sense to call this function already needs
to have preemption disabled.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/powerpc/kvm/e500_tlb.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index 22624a7ae821..b976d8025e58 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -116,13 +116,11 @@ static inline int local_sid_lookup(struct id *entry)
return -1;
}
-/* Invalidate all id mappings on local core */
+/* Invalidate all id mappings on local core -- call with preempt disabled */
static inline void local_sid_destroy_all(void)
{
- preempt_disable();
__get_cpu_var(pcpu_last_used_sid) = 0;
memset(&__get_cpu_var(pcpu_sids), 0, sizeof(__get_cpu_var(pcpu_sids)));
- preempt_enable();
}
static void *kvmppc_e500_id_table_alloc(struct kvmppc_vcpu_e500 *vcpu_e500)
--
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